package 设计模式.facade;

public class Popcorn {
    private static Popcorn instance =new Popcorn();

    public static Popcorn getInstance(){
        return instance;
    }

    public void on(){
        System.out.println("开");
    }

    public void off(){
        System.out.println("关");
    }
    public void stop(){
        System.out.println("暂停");
    }
}
